L7805C
Every spec below is cited to the manufacturer datasheet. Pick your exact ordering code, compare the closest alternatives, then ask the assistant what it means for your design.
What the L7805C family does
The L78 series are three-terminal positive voltage regulators available in TO-220, TO-220FP, DPAK, and D²PAK packages. These devices cover fixed output voltages of 5, 6, 8, 8.5, 9, 12, 15, 18, and 24 V. They support output currents up to 1.5 A and feature a 2% output voltage tolerance for A versions. The family includes internal current limiting, thermal shut-down, and safe area protection to ensure robust operation. These regulators provide local on-card regulation, eliminating distribution problems found in single-point systems. They are typically used in applications requiring stable, fixed voltage supplies with high current capability and inherent safety features against overload and short circuits.
L7805AB datasheet parameters
| Parameter | Min | Typ | Max | Conditions | Source |
|---|---|---|---|---|---|
| quiescent current | — | 4.3 mA | 6 mA | TJ = 25 °C; iq; Electrical characteristics of L7805A | ST datasheet, p. 6 — Table 3. Electrical characteristics of L7805A |
| output voltage | 4.9 V | 5 V | 5.1 V | TJ = 25 °C; vo; Electrical characteristics of L7805A | ST datasheet, p. 6 — Table 3. Electrical characteristics of L7805A |
| output current | — | 1.5 A | — | ST datasheet, p. 1 | |
| supply voltage range (abs max) | — | — | 35 V | for VO = 5 to 18 V; vi; Absolute maximum ratings | ST datasheet, p. 4 — Table 1. Absolute maximum ratings |
| operating temperature (abs max) | -40 °C | — | 125 °C | ST datasheet, p. 4 — Table 1. Absolute maximum ratings | |
| psrr | — | 68 dB | — | VI = 8 to 18 V, f = 120 Hz, IO = 500 mA; Electrical characteristics of L7805A | ST datasheet, p. 6 — Table 3. Electrical characteristics of L7805A |
| dropout voltage | — | 2 V | — | IO = 1 A, TJ = 25 °C; vd; Electrical characteristics of L7805A | ST datasheet, p. 6 — Table 3. Electrical characteristics of L7805A |
| output noise voltage | — | 10 µV | — | ST datasheet, p. 6 — Table 3. Electrical characteristics of L7805A | |
| output count | — | 1 | — | ST datasheet, p. 1 |
L7805AB frequently asked questions
What is the dropout voltage of the L7805AB when IO = 1 A and TJ = 25 °C?
The dropout voltage is 2 V.
What is the maximum operating temperature for the L7805AB?
The operating temperature is 125 °C.
What is the output count for the L7805AB?
The output count is 1.
What is the output current of the L7805AB?
The output current is 1.5 A.
What is the output noise voltage of the L7805AB?
The output noise voltage is 10 µV.
What is the output voltage of the L7805AB at TJ = 25 °C?
The output voltage is 5 V at TJ = 25 °C.
What is the Power Supply Rejection Ratio (PSRR) of the L7805AB under the electrical characteristics of L7805A?
The PSRR is 68 dB when VI = 8 to 18 V, f = 120 Hz, and IO = 500 mA.
What is the quiescent current of the L7805AB at TJ = 25 °C?
The quiescent current is 4.3 mA.
What is the absolute maximum supply voltage range for the L7805AB when the output voltage is 5 to 18 V?
The absolute maximum supply voltage is 35 V.
L7805AC datasheet parameters
| Parameter | Min | Typ | Max | Conditions | Source |
|---|---|---|---|---|---|
| quiescent current | — | 4.3 mA | 6 mA | TJ = 25 °C; iq; Electrical characteristics of L7805A | ST datasheet, p. 6 — Table 3. Electrical characteristics of L7805A |
| output voltage | 4.9 V | 5 V | 5.1 V | TJ = 25 °C; vo; Electrical characteristics of L7805A | ST datasheet, p. 6 — Table 3. Electrical characteristics of L7805A |
| output current | — | 1.5 A | — | ST datasheet, p. 1 | |
| supply voltage range (abs max) | — | — | 35 V | for VO = 5 to 18 V; vi; Absolute maximum ratings | ST datasheet, p. 4 — Table 1. Absolute maximum ratings |
| operating temperature (abs max) | 0 °C | — | 125 °C | ST datasheet, p. 4 — Table 1. Absolute maximum ratings | |
| psrr | — | 68 dB | — | VI = 8 to 18 V, f = 120 Hz, IO = 500 mA; Electrical characteristics of L7805A | ST datasheet, p. 6 — Table 3. Electrical characteristics of L7805A |
| dropout voltage | — | 2 V | — | IO = 1 A, TJ = 25 °C; vd; Electrical characteristics of L7805A | ST datasheet, p. 6 — Table 3. Electrical characteristics of L7805A |
| output noise voltage | — | 10 µV | — | ST datasheet, p. 6 — Table 3. Electrical characteristics of L7805A | |
| output count | — | 1 | — | ST datasheet, p. 1 |
L7805AC frequently asked questions
What is the dropout voltage of the L7805AC when IO = 1 A and TJ = 25 °C?
The dropout voltage is 2 V.
What is the maximum operating temperature for the L7805AC?
The operating temperature is 125 °C.
What is the output count for the L7805AC?
The output count is 1.
What is the maximum output current for the L7805AC?
The maximum output current is 1.5 A.
What is the output noise voltage of the L7805AC?
The output noise voltage is 10 µV.
What is the output voltage of the L7805A at TJ = 25 °C?
The output voltage is 5 V.
What is the Power Supply Rejection Ratio (PSRR) for the L7805AC under the specified electrical characteristics?
The PSRR is 68 dB when VI = 8 to 18 V, f = 120 Hz, and IO = 500 mA.
What is the quiescent current (iq) of the L705AC at TJ = 25 °C?
The quiescent current is 4.3 mA at TJ = 25 °C.
What is the absolute maximum supply voltage range for the L7805AC when VO = 5 to 18 V?
The absolute maximum supply voltage (vi) is 35 V.
L7805C datasheet parameters
| Parameter | Min | Typ | Max | Conditions | Source |
|---|---|---|---|---|---|
| quiescent current | — | — | 8 mA | TJ = 25° C; id; Electrical characteristics of L7805C | ST datasheet, p. 13 — Table 10. Electrical characteristics of L7805C |
| output voltage | 4.8 V | 5 V | 5.2 V | TJ = 25 °C; vo; Electrical characteristics of L7805C | ST datasheet, p. 13 — Table 10. Electrical characteristics of L7805C |
| output current | — | 1.5 A | — | ST datasheet, p. 1 | |
| supply voltage range (abs max) | — | — | 35 V | for VO = 5 to 18 V; vi; Absolute maximum ratings | ST datasheet, p. 4 — Table 1. Absolute maximum ratings |
| operating temperature (abs max) | 0 °C | — | 125 °C | ST datasheet, p. 4 — Table 1. Absolute maximum ratings | |
| psrr | 62 dB | — | — | VI = 8 to 18 V, f = 120 Hz; Electrical characteristics of L7805C | ST datasheet, p. 13 — Table 10. Electrical characteristics of L7805C |
| dropout voltage | — | 2 V | — | IO = 1 A, TJ = 25 °C; vd; Electrical characteristics of L7805C | ST datasheet, p. 13 — Table 10. Electrical characteristics of L7805C |
| output noise voltage | — | 40 µV | — | ST datasheet, p. 13 — Table 10. Electrical characteristics of L7805C | |
| output count | — | 1 | — | ST datasheet, p. 1 |
L7805C frequently asked questions
What is the dropout voltage of the L7805C?
The dropout voltage is 2 V at IO = 1 A and TJ = 25 °C.
What is the maximum operating temperature for the L7805C?
The maximum operating temperature is 125 °C.
What is the output count for the L7805C?
The output count is 1.
What is the output current of the L7805C?
The output current is 1.5 A.
What is the output noise voltage of the L7805C?
The output noise voltage is 40 µV.
What is the output voltage of the L7805C at TJ = 25 °C?
The output voltage is 5 V.
What is the Power Supply Rejection Ratio (PSRR) of the L7805C when VI = 8 to 18 V and f = 120 Hz?
The PSRR is 62 dB.
What is the quiescent current of the L7805C?
The quiescent current is 8 mA at TJ = 25° C.
What is the absolute maximum supply voltage for the L7805C when VO = 5 to 18 V?
The absolute maximum supply voltage is 35 V.
L7806AB datasheet parameters
| Parameter | Min | Typ | Max | Conditions | Source |
|---|---|---|---|---|---|
| quiescent current | — | 4.3 mA | 6 mA | TJ = 25 °C; iq; Electrical characteristics of L7806A | ST datasheet, p. 7 — Table 4. Electrical characteristics of L7806A |
| output voltage | 5.88 V | 6 V | 6.12 V | TJ = 25 °C; vo; Electrical characteristics of L7806A | ST datasheet, p. 7 — Table 4. Electrical characteristics of L7806A |
| output current | — | 1.5 A | — | ST datasheet, p. 1 | |
| supply voltage range (abs max) | — | — | 35 V | for VO = 5 to 18 V; vi; Absolute maximum ratings | ST datasheet, p. 4 — Table 1. Absolute maximum ratings |
| operating temperature (abs max) | -40 °C | — | 125 °C | ST datasheet, p. 4 — Table 1. Absolute maximum ratings | |
| psrr | — | 65 dB | — | VI = 9 to 19 V, f = 120 Hz, IO = 500 mA; Electrical characteristics of L7806A | ST datasheet, p. 7 — Table 4. Electrical characteristics of L7806A |
| dropout voltage | — | 2 V | — | IO = 1 A, TJ = 25 °C; vd; Electrical characteristics of L7806A | ST datasheet, p. 7 — Table 4. Electrical characteristics of L7806A |
| output noise voltage | — | 10 µV | — | ST datasheet, p. 6 — Table 3. Electrical characteristics of L7805A | |
| output count | — | 1 | — | ST datasheet, p. 1 |
L7806AB frequently asked questions
What is the dropout voltage of the L7806AB when IO = 1 A and TJ = 25 °C?
The dropout voltage is 2 V.
What is the maximum operating temperature for the L7806AB?
The maximum operating temperature is 125 °C.
What is the output count for the L7806AB?
The output count is 1.
What is the maximum output current for the L7806AB?
The maximum output current is 1.5 A.
What is the output noise voltage of the L7806AB?
The output noise voltage is 10 µV.
What is the output voltage of the L7806AB at TJ = 25 °C?
The output voltage is 6 V.
What is the Power Supply Rejection Ratio (PSRR) of the L7806AB under the specified electrical characteristics?
The PSRR is 65 dB when VI = 9 to 19 V, f = 120 Hz, and IO = 500 mA.
What is the quiescent current (iq) of the L7806AB at TJ = 25 °C?
The quiescent current is 4.3 mA.
What is the absolute maximum supply voltage range for the L7806AB when VO = 5 to 18 V?
The absolute maximum supply voltage is 35 V.
L7806AC datasheet parameters
| Parameter | Min | Typ | Max | Conditions | Source |
|---|---|---|---|---|---|
| quiescent current | — | 4.3 mA | 6 mA | TJ = 25 °C; iq; Electrical characteristics of L7806A | ST datasheet, p. 7 — Table 4. Electrical characteristics of L7806A |
| output voltage | 5.88 V | 6 V | 6.12 V | TJ = 25 °C; vo; Electrical characteristics of L7806A | ST datasheet, p. 7 — Table 4. Electrical characteristics of L7806A |
| output current | — | 1.5 A | — | ST datasheet, p. 1 | |
| supply voltage range (abs max) | — | — | 35 V | for VO = 5 to 18 V; vi; Absolute maximum ratings | ST datasheet, p. 4 — Table 1. Absolute maximum ratings |
| operating temperature (abs max) | 0 °C | — | 125 °C | ST datasheet, p. 4 — Table 1. Absolute maximum ratings | |
| psrr | — | 65 dB | — | VI = 9 to 19 V, f = 120 Hz, IO = 500 mA; Electrical characteristics of L7806A | ST datasheet, p. 7 — Table 4. Electrical characteristics of L7806A |
| dropout voltage | — | 2 V | — | IO = 1 A, TJ = 25 °C; vd; Electrical characteristics of L7806A | ST datasheet, p. 7 — Table 4. Electrical characteristics of L7806A |
| output noise voltage | — | 10 µV | — | ST datasheet, p. 6 — Table 3. Electrical characteristics of L7805A | |
| output count | — | 1 | — | ST datasheet, p. 1 |
L7806AC frequently asked questions
What is the dropout voltage of the L7806AC when IO = 1 A and TJ = 25 °C?
The dropout voltage is 2 V.
What is the maximum operating temperature for the L7806AC?
The maximum operating temperature is 125 °C.
What is the output count for the L7806AC?
The output count is 1.
What is the maximum output current for the L7806AC?
The maximum output current is 1.5 A.
What is the output noise voltage of the L7806AC?
The output noise voltage is 10 µV.
What is the output voltage of the L7806AC at TJ = 25 °C?
The output voltage is 6 V.
What is the PSRR of the L7806A when VI = 9 to 19 V, f = 120 Hz, and IO = 500 mA?
The PSRR is 65 dB.
What is the quiescent current (iq) of the L7806AC at TJ = 25 °C?
The quiescent current is 4.3 mA.
What is the absolute maximum supply voltage range for the L7806AC when the output voltage is 5 to 18 V?
The absolute maximum supply voltage is 35 V.